Ophthalmic mounting



C. 0. GOZZENS.

OPHTHALMIC MOUNTING.

APPLICATION FILED NOV-24.1917.

1,358,, 15%. Patented Nov. 16, 192i),

. F15, F/Q.

M/VE/I/TOR CHARLES o cozzanls Arm/mm CHARLES 0. COZZENS, OF, SOUTHBRIDGE, MASSACHUSETTS, ASSIGNOR TO AMERICAN OPTICAL COMPANY, OF SOUTI-IBRIDGE, MASSACHUSETTS, A VOLUNTARY ASSOCIA- TION OF MASSACHUSETTS.

OPHTHALMIC MOUNTING. 7

Specification of Letters Patent.

Patented Nov. 16, 1920.

Application filed November 24, 1917. Serial No. 203,770.

To all whom it may concern Be it known that I, CHARLES O. CozzENs,

a citizen of the United States, residing at Southbridge, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Ophthalmic Mountings, of which the following is a specification.

This invention relates to improvements in ophthalmic mountings, and has particular reference to that type of mounting in which spring actuated guards are employed for retaining the mounting in position on the face of the wearer, this mounting to be commonly designated by the term fingerpiece mounting.

One of the leading objects of the present invention is the provision of a novel and improved construction of pivot support or hearing for a fingerpiece lever to insure'most satisfactory operation thereof.

A further object of the present inven tion is the provision of a novel and improved construction particularly adapted for use in connection with mountings of the frame as distinguished from the frameless type, and which will present an ex tremely neat and attractive appearance in connection with said frame.

A further object of the present invention is the provision of a novel and improved manner of forming and securing the several parts at the pivot in connection with a frame made up of both metallic and non-metallic portions, whereby a secure and satisfactory pivot and also a joint for the frame will be provided at the one time.

Other objects and advantages of my improved construction should be readily apparent by reference to the following speciiication taken in connection with the accompanying drawings, and it will be understood that I may make any modifications in the specific details of construction shown 45 and described within the scope of the appended claims without departing from or ceeding the spirit of my invention.

Figure I represents a front view of one form of mounting embodying my improvement.

Fig. II represents a fragmentary sectional view thereof.

Fig. III represents a similar view of an extremely simple form of my invention.

tion.

Fig. V illustrates a similar view of an other form of the invention, and

Fig. VI is a view similar to Figs. II to illustrating another form of the invenion.

In the drawings, in which similar charactors of reference are employed to denote corresponding parts throughout the several views, the numeral 1 designates the bridge or frame connecting member of my mounting. In that form of the invention specifically illustrated in Fig. II, I have shown the bridge as having secured to its outer end the metallic frame member 2 and overlying the metallic frame and retained in position by the countersunk screw 3, is the non-metallic frame member 4.

' Secured to the opposite end of the metallic frame 2 is a plate 5, against which abuts the other end of the non-metallic frame 4, these parts being secured together by a screw 6 having its head projecting from the plate 5 and adapted to fit into the countersink or recess 7 on top of the head of the screw 3, thus locking the two ends of the frame in alinement, one with the other, and preventing any relative twisting or disalining 'movement thereof.

In Fig. II the bridge is further provided with a socket, as at 8, adapted to receive the lower squared end of a pivot post 9, which projects upward through the plate 5 and serves as a pivot for the tube 10 on the lingerpiece lever 11, an actuating spring 12 surrounding the tube and having one end engaging the lever and the other end engaging the frame 4 for proper resilient actuation of the lever. A screw 13 extending upwardly through the bridge and into the post 9 serves to secure the post to the bridge while a second screw 14 is engaged in the upper end of the post and by its engagement with the upper end of the tube 10, serves to hold the fingerpiece in place and against upward movement, while the lower face of the fingerpiece engages the plate 5 and serves to retain the plate in position and thus to hold the frame and secure the lens. It will thus be seen that by loosening of the screw 14 the lever. and spring may first be removed or allowed to and the parts then all slide upward somewhat, when the plate 5 may slide upward to permit of interchangement of the lenses normally retained by the frame. As an alternative construction,l1owever, the post 9 might be provided with a shoulder, as at 15, engaging the upper face of the plate 5, this construction being illustrated in Fig. IV, in which event to loosen the lens it is necessary to take out the screw 13, when the post will remain in the plate 5 and the lever and spring will be securely held in place on the post by the screw 14:, while the lens may be readily interchanged secured in their former position, as by tightening of the screw 13. i

In the simpler form of my invention illustrated in Fig. III, the plate 5 is provided with a short depending tubular portion or annulus 19 and with the upwardly extending tubular portion or post 20 which is of size to form the pivot for the lever 11 and its tube 10. The securing screw 1d extends downward loosely through the portions 20 and 19 of the plate 5 and is engaged. in the bridge 1 therebelow bearing against the upper end of the portion 20 to securely clamp itand thus the plate 5 against the bridge. Particular attention is invited in connection with this form of my invention to the fact that by the interlocking of the head of the screw 6 with the recess 7 in the bridge, together with the interlocking of the flange 19 with the second recess in the bridge, the plate 5 is held against any possible twisting movement with the' two halves of the frame at the joint to satisfactorily flange up with each other to present the best possible appearance and prevent any distortion of the mounting when in use.

From the foregoing description taken in connection with the accompanying drawings, the construction and advantages of my improved ophthalmic mounting should be readily apparent and it will be seen that I have provided a novel and improved mounting embodying a frame and pivoted sprin actuated lever for retaining the frame members and connecting bridge in position on the face, and that by my improvedconstruction I in all forms insure an extremely satisfactory bearing for the lever to prevent any weaving or wabbling movement of the lever, and at thesame time provide a neat relatively inconspicuous joint or connection between the split ends of the frame and so blend the joint into the pivot and actuating parts for thelever that the joint itself will pass practically unnoticed in connection with the mounting, while at the same time I utilize all or portions of the pivot in such a way as to secure the most satisfactory retention of the ends of the frame in proper relation and reduce to a minimum the num ber of parts necessary, both to pivot the lever and to connect the joint, and preferably, as particularly illustrated in connection with Figs. II, III, and IV, so construct and join the several parts of my improved mounting that while a single fastening device may be employed for connectin the parts, if desired, or a pair of substantially alined fastening devices, the frame may be readily opened for insertion or removal of a lens without the necessity of in anywise (:listurbing the pivoted lever and the parts intimately associated therewith.

InFig. V I have illustrated a form of the invention which includes the integral formation of the post 9 and the plate 5 together with the apposed screw members 13 and Lil and as will be readily apparent the lenses can be readily removed from the frame, by removing the screw 13, without disconnecting the fingerpiece from the frame. As illustrated this form of the invention is constructed similar to the form shown in Fig.

III, with the exception of the apposed screw members. In this form the plate 5 is provided with a short depending tubular portion or annulus 19' and with the upwardly extending portion or post 20" which is of a size to form the pivot for the lever 11 and its tube 10. V

In Fig. VI I have illustrated a form of the invention wherein the screw is arranged within the post 2-5 in such a manner that the same will not drop outwhen the ends of the lens frames are disconnected to remove the lenses from the frame 4. In this form the invention the interior of the post 25' is provided midway of its length with a series of threads as shown at 26 so that when the screw 1% is inserted into the post the same is first threaded through the threads before being engaged with the bridge seat 1. It will be noticed that above the threads 26 there is a suitable space as shown.

at 27 whereby the screw is inserted into this space before being threaded through the post, furthermore it will be noted that after the screw has been threaded through the post the threads 26 will prevent thesame from dropping out when it hasbeen disengaged from the bridge seat to exchange the lenses.

same could be easily engaged with the bridge seat. At the same time this smoothpjortion will permit of a certain amount of outward movement on the part of the screw when it is detached from the bridge seat, but it will not slide entirely through the post asthe Thus the screw will always be in place to be threaded back into the bridge threaded end of the screw will contact with the threads 26 to retain the screw against further outward movement. It will be apparent that this form of the invention is similar to the form shown in Fig. III with the exception of the threads 26 on the interior of the post 25.

I claim:

1. In an ophthalmic mounting, the combination with a bridge having a seat on its upper face and a plate overlying the seat,

- of a split frame, one end of the frame being secured to the bridge and the other to the plate, said bridge having a socket formed therein, a projection on the plate fitting into the socket to retain the ends of the frame in alinement one with the other, a tubular post on the plate forming a pivot, a fingerpiece lever mounted on the post, a screw engaged with the post to retain the lever thereon and means for detachably connecting the post to the bridge.

2. In an ophthalmic mounting, the combination with a bridge having a seat on its upper face and a plate overlying the seat, of a split frame, one end of the frame being secured to the bridge and the other to the plate, said bridge having a socket formed therein, a projection on the plate fitting into the socket to retain the ends of the frame in alinement one with the other, a tubular post on the plate forming a pivot, a fingerpiece lever mounted on the post, a screw extended through the post and engaged with the bridge to retain the fingerpiece in place and detachably unite the post with the bridge, and screw threads formed on the interior of the post midway of its length as and for the purpose described.

3. In an ophthalmic mounting, the combination with a bridge member, of a split frame having one end secured to the bridge member, a plate secured to the opposite end of the bridge member, a resiliently actuated guard lever carried by the plate, means for retaining said parts in engagement one with the other, a supplemental frame encircling the main frame and havingv one end united to the bridge and the opposite end united with the plate, one of said connections being countersunk in its respective part and the other of said connections projecting to fit into the countersink, and means for securing the plate and bridge together whereby the interlocking connection serves to steady the parts against relatively twisting movement.

4. A device of the character described including a bridge, a plate mounted on the bridge, means for securing said parts together, a lens receiving frame centrally split and having one end secured to the plate and the opposite end to the bridge, a supplemental frame encircling the main frame, and means for securing the ends of the supplemental frame to the bridge and plate, one of said connecting means being countersunk to provide a socket thereabove and the other of said connecting means having a projecting portion to fit into the socket whereby said parts interlock to prevent rotary twisting movement of the bridge and plate about their connection.

5. A device of the character described including a bridge having a seat on its upper face, a split frame having one end secured to the bridge, a plate carried by the opposite end for engagement with the seat, said plate having a tubular portion projecting upwardly thereabove to provide a pivot, a

lever having a tubular portion rotatably mounted on said projection, a. spring encircling the tubular portion of the lever for actuating the latter, and a fastening device depending through the post into engagement with the bridge for connecting the parts in a unitary structure.

6. A device of the character described including a bridge having a seat on its upper face, a split frame having one end secured to the bridge, a plate carried by the opposite end for engagement with the seat, said plate having a tubular portion projecting upwardly thereabove to provide a pivot, a lever having a tubular portion rotatably mounted on said projection ,a spring encircling the tubular portion of the lever for actuating the latter, and a fastening device adapted to have intermediate engagement with the pivot for retaining the parts thereon, and terminal engagement with the bridge for securing the plate and associated parts in engagement with the bridge.

7 A device of the character described including a bridge, a frame having one end secured to the bridge, a plate carried by the opposite end of the frame and including an upstanding tubular portion threaded intermediately of the interior thereof, and a fastening device for uniting the parts, having a threaded lower portion for interlocking engagement with the interior threads of the tubular portion, and a reduced intermediate portion to permit of free rotative movement of the fastening device within the post for connection of the same with the bridge, substantially as and for the purpose described. In testimony whereof I have affixed my signature, in presence of two witnesses.

C. O. COZZENS.

WVitnesses CLARE B. SIMONDS, EDWARD R. SKINNER. 

